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importpandasaspdfromlightweight_chartsimportChartdefget_bar_data(symbol, timeframe):
ifsymbolnotin ('AAPL', 'GOOGL', 'TSLA'):
print(f'No data for "{symbol}"')
returnpd.DataFrame()
returnpd.read_csv(f'bar_data/{symbol}_{timeframe}.csv')
defon_search(chart, searched_string):
new_data=get_bar_data(searched_string, chart.topbar['timeframe'].value)
ifnew_data.empty:
returnchart.topbar['symbol'].set(searched_string)
chart.set(new_data)
# Load the drawings saved under the symbol.chart.toolbox.load_drawings(searched_string)
defon_timeframe_selection(chart):
new_data=get_bar_data(chart.topbar['symbol'].value, chart.topbar['timeframe'].value)
ifnew_data.empty:
return# The symbol has not changed, so we want to re-render the drawings.chart.set(new_data, keep_drawings=True)
if__name__=='__main__':
chart=Chart(toolbox=True)
chart.legend(True)
chart.events.search+=on_searchchart.topbar.textbox('symbol', 'TSLA')
chart.topbar.switcher(
'timeframe',
('1min', '5min', '30min'),
default='5min',
func=on_timeframe_selection
)
df=get_bar_data('TSLA', '5min')
chart.set(df)
# Imports the drawings saved in the JSON file.chart.toolbox.import_drawings('drawings.json')
# Loads the drawings under the default symbol.chart.toolbox.load_drawings(chart.topbar['symbol'].value)
# Saves drawings based on the symbol.chart.toolbox.save_drawings_under(chart.topbar['symbol'])
chart.show(block=True)
# Exports the drawings to the JSON file upon close.chart.toolbox.export_drawings('drawings.json')
Environment
- OS: Window 10
- name ='lightweight_charts',
version='2.0.1',
python='>=3.10',
The text was updated successfully, but these errors were encountered:
Expected Behavior
Drawings deleting locally only
when a drawing is rendered, and later removed or price updated it should be update on the drawing.json file as well
Current Behaviour
Any drawings on the chart will not be deleted or updated from drawings.json
drawingsNotDeleting.mp4
i am adding some data for testing
data.csv
Reproducible Example
Environment
The text was updated successfully, but these errors were encountered: